Kusanthula mbewu ndi mphepo ndi njira yodziwika bwino yoyeretsera mbewu ndikuyika ma grading. Zonyansa ndi tinthu tating'onoting'ono tosiyanasiyana timasiyanitsidwa ndi mphepo. Mfundo yake makamaka imaphatikizapo kugwirizana pakati pa tirigu ndi mphepo, machitidwe a mphepo ndi njira yolekanitsa ya tinthu tambewu.
Mfundo yowunikira tirigu ndi mphepo imachokera pa mgwirizano pakati pa njere ndi mphepo. Zodetsedwa mumbewu ndi mbewu zimakhala ndi kulemera kosiyana, mawonekedwe ndi mawonekedwe apamwamba. Poyang'anira kukula ndi mayendedwe a mphamvu ya mphepo, ubale woyenda pakati pa njere ndi mphamvu yamphepo ukhoza kusinthidwa, kuti azindikire kulekanitsa zonyansa ndi njere. Mbewu idzakhudzidwa ndi kayendedwe ka mpweya poyang'ana mphepo, pamene zonyansa ndi tinthu tating'onoting'ono timachotsedwa ndi mphepo chifukwa cha kachulukidwe kake kakang'ono, pamene mbewu zazikulu zidzasungidwa pawindo chifukwa cha kulemera kwake kwakukulu.
Kachiwiri, mphamvu yamphepo imapangidwa makamaka ndi mafani kapena zoyeretsa zoziziritsa kukhosi. Njira zogwirira ntchito za mphamvu yamphepo zimaphatikizapo mphepo yopingasa, mphepo yowongoka komanso mphepo yamkuntho. Mphepo yopingasa imatanthauza kuti mphepo imawomba mbewu motsatira njira yopingasa, yomwe imagwiritsidwa ntchito makamaka pokhetsa zonyansa; Mphepo yoyima imatanthawuza kuti mphepo imawomba mbewu molunjika, yomwe imagwiritsidwa ntchito makamaka kulekanitsa zonyansa zowala, fumbi ndi zinyalala zina; Mphepo yophatikizika imatanthawuza kugwiritsa ntchito mphamvu zamphepo zopingasa komanso zoyima munthawi imodzi.
Nthawi yotumiza: Dec-16-2024
